Fixes for review.

Author: ylzsx

llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp

@@ -2572,9 +2572,6 @@ SDValue DAGTypeLegalizer::PromoteIntOp_FRAMERETURNADDR(SDNode *N) {
 }
 
 SDValue DAGTypeLegalizer::PromoteIntOp_ExpOp(SDNode *N) {
-  if (N->getValueType(0).isVector())
-    return DAG.UnrollVectorOp(N);
-
   bool IsStrict = N->isStrictFPOpcode();
   SDValue Chain = IsStrict ? N->getOperand(0) : SDValue();
 
@@ -2588,6 +2585,8 @@ SDValue DAGTypeLegalizer::PromoteIntOp_ExpOp(SDNode *N) {
                              : RTLIB::getLDEXP(N->getValueType(0));
 
   if (LC == RTLIB::UNKNOWN_LIBCALL || !TLI.getLibcallName(LC)) {
+    if (N->getValueType(0).isVector())
+        return DAG.UnrollVectorOp(N);
     SmallVector<SDValue, 3> NewOps(N->ops());
     NewOps[1 + OpOffset] = SExtPromotedInteger(N->getOperand(1 + OpOffset));
     return SDValue(DAG.UpdateNodeOperands(N, NewOps), 0);